GLXD14/SM31 - Digital Wireless Headset System with SM31FH Fitness Headset Microphone
Wireless System for Fitness Instructors - SHURE BLX14R/SM31 UHF inc he – bodymics
SM31 FH- Shure Fitness Headset - can be adapted to other brands – bodymics
Headset Wireless Systems
Amazon.com: Shure SM31 Fitness Headset Condenser Microphone with Moisture-Repelling Hydrophobic Construction for Workout Instructors, TQG Connects to Shure Wireless Systems (Bodypack Transmitter Sold Separately) : Musical Instruments
Shure
BLX14/SM31 - Wireless Fitness Headset System with SM31FH Headset Microphone
Shure BLX14/SM31 Headworn Wireless System with SM31FH Fitness Headset – Mega DJ Center
Shure SM31-FH Fitness Headset Microphone — AV Now Fitness Sound
Shure BLX14/SM31 Wireless Fitness Headset System with SM31FH Headset Microphone – Fleet Pro Sound
Shure BLX Wireless Mic System with SM31FH Fitness Headset Microphone — AV Now Fitness Sound